arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1208.3404hep-ph
收藏

在LHC上产生V对的电弱精确度

Electroweak accuracy in V-pair production at the LHC

Anastasiya Bierweiler, Tobias Kasprzik, Johann H. Kuhn

摘要:

矢量玻色子对的产生在LHC中具有重要的唯象意义。这些过程将有助于在最高能量下验证标准模型,它们也可能为发现新物理学打开大门,这些新物理学可能会出现在弱相互作用的非阿贝尔结构的微妙修改中。在这封信中,我们提出了第一个完整的$\mathcal{O}(α^3)$分析壳层W $^\pm$ Z和Z-对生产在大型强子对撞机与所有的质量效应一致。由此产生的电弱修正是负的,强烈增加横动量的增加,并导致显着修改的快度和角分布。鉴于大型强子对撞机的高能量,结合相当大的事件率,我们的结果必须包括在一个适当的分析实验数据。

英文摘要:

Vector-boson pair production is of great phenomenological importance at the LHC. These processes will help to validate the Standard Model at highest energies, and they may also open the door for the discovery of new physics potentially showing up in subtle modifications of the non-abelian structure of weak interactions. In this letter, we present the first full $\mathcal{O}(α^3)$ analysis of on-shell W$^\pm$Z and Z-pair production at the LHC with all mass effects consistently included. The resulting electroweak corrections are negative, strongly increase with increasing transverse momenta, and lead to significant modifications of rapidity and angular distributions. In view of the high energies accessible at the LHC, combined with considerable event rates, our results have to be included in a proper analysis of experimental data.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑